We Facing following problem in 400KVA
When initializing ----> capacitor charging ----> 100% charged ---> Turn on power -----> immediate main (utility ) breaker tripped OFF.
Dc bus voltage but there is no Dc voltage while this Dc bus charge card get damagewe already verify visual checkup of all cables, wires, correct polarities of Capacitors and wires numbers some time capacitors up to 100 DC get charges.
Required your support to solve the issues.